Abstract
The beta-delayed alpha-particle emission of has been studied, with nuclei produced using 80 MeV/nucleon beams on targets. The secondary nuclei were mass analyzed and separated from the reaction products using the Michigan State University A1200 isotope separator. A detector array, including four thin surface barrier detectors, a p-i-n diode, a Ge gamma-ray detector, and a two-dimensional position sensitive parallel plate avalanche counter, was used for implantation and study of the separated nuclei. A beta-decay branching ratio of (1.3±0.3)× to the state at 9.6 MeV and a centroid of 2.35±0.05 MeV for the beta-delayed alpha-particle emission were measured. These results are essential for the analysis of a high sensitivity measurement at Yale University of the low-energy beta-delayed alpha-particle emission of , and for understanding the (α,γO reaction in the helium burning process in massive stars.
- Received 10 February 1993
DOI:https://doi.org/10.1103/PhysRevC.48.429
©1993 American Physical Society